thanks for the info.

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Want to see what im growing?

Can I use the Lucas Formula if I have the Sensi Grow two part system and Sensi Bloom two part system? I am about to start my very first grow and someone recommended that I look up the Lucas Formula. If I can't use this formula is there another formula that I could follow?

Can someone explain the 2 types of ways to use the formula? I am about to start my very first grow and it sounds like this formula might be the easiest for someone first starting out. Finally, what does the TDS conversion @ 0.5 and 0.7 mean and what should my PPM be at during the various stages if my water is at 270 PPM?

Thank You

Matt

can i use this fumula with tap water around 300 ppm?
when increasing the strenght from the starting clone to full veg do you just add more when topping off the res.?? little help with that would be great

Cool. A Lucas thread!

I love this formula. I have read every thread by Lucas I could find, twice. Couple of notes:

Lucas only recommends using the 0/5/10 ratios if vegging under fluro. If vegging under HID it is 0/8/16 all the way.

The updated preference is GH FloraNovaGrow. Same nutrient mix as the 0/8/16 in 1 bottle. Mix well. Use it at 8ml/gal of tap water (under .5 EC or RO) comes out to 2.0EC and 5.8PH. Perfection.

The addback works great. No buildup for the whole cycle. The only other thing I add is H2O2.

Here is the link for the nutrient calculator if you wanna run your current nutes through it to see what your really feeding:

http://www.angelfire.com/cantina/fou...s/profiles.htm

If you cant figure it out just post the chem breakdown from the backs of your nute bottles and I will run it for you.

AN 3part would work fine and in theory you could do the addbacks with any nute combo as long as what you are feeding is all in the right concentration to not build up as it is taken by the plants.

FNG is 2% Mg so MG def is rare. A very slight N def can occur during the stretch but it clears on its own.

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AMMENDMENT 20 COMPLIANT - Rocky Mountain High

so dogleaf your saying with floranovagro that is all you need @ 8ml per gal. Do you add any bllom agents orother supplaments?

Correct 8ml/g. No supplements needed or recommended. ! part does it all. Simply beautiful.

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AMMENDMENT 20 COMPLIANT - Rocky Mountain High

I have recently inherited 5 gallons of "europonics optimum bloom" I have 3 gallons of b and two gallons of A. I would like to convert these over to use the Lucas Formula. The labels wrap halfway around the bottle, so I took two pics of each label and combined them. Hope you can help me convert them!!

Thank you so much for your help!

Attached Images

	BloomPartA.jpg (87.3 KB, 27 views)
	BloomPartB.jpg (85.0 KB, 16 views)

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Target = 100-100-200-60
Yours = 120-86-263-43

That's decent stuff. Has plenty of Cal and Mg too where lots of stuff does not. Mix that stuff with equal parts till you get your desired PPM and got to town.

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AMMENDMENT 20 COMPLIANT - Rocky Mountain High

That's cool! It is some old school stuff my pal used to grow some wicked original haze years back. Been sitting in a dark room on a shelf since then.

Please forgive me for being such a newb... is there any way to use the calculators to convert these nutrients to the equivalent of GH. For example
8 ml of micro with 16 ml of bloom = 1894
how many ml of each of these would I use to reach the same level?

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Use them in equal parts. I ran it at 8ml each. Should be around 2.0EC

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AMMENDMENT 20 COMPLIANT - Rocky Mountain High